Qt:Документация 4.3.2/demos-undo-commands-h
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[править] commands.h Example File
demos/undo/commands.h
/**************************************************************************** ** ** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved. ** ** This file is part of the demonstration applications of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of ** this file. Please review the following information to ensure GNU ** General Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/ ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.0, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** In addition, as a special exception, Trolltech, as the sole copyright ** holder for Qt Designer, grants users of the Qt/Eclipse Integration ** plug-in the right for the Qt/Eclipse Integration to link to ** functionality provided by Qt Designer and its related libraries. ** ** Trolltech reserves all rights not expressly granted herein. ** ** Trolltech ASA (c) 2007 ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #ifndef COMMANDS_H #define COMMANDS_H #include <QUndoCommand> #include "document.h" class AddShapeCommand : public QUndoCommand { public: AddShapeCommand(Document *doc, const Shape &shape, QUndoCommand *parent = 0); void undo(); void redo(); private: Document *m_doc; Shape m_shape; QString m_shapeName; }; class RemoveShapeCommand : public QUndoCommand { public: RemoveShapeCommand(Document *doc, const QString &shapeName, QUndoCommand *parent = 0); void undo(); void redo(); private: Document *m_doc; Shape m_shape; QString m_shapeName; }; class SetShapeColorCommand : public QUndoCommand { public: SetShapeColorCommand(Document *doc, const QString &shapeName, const QColor &color, QUndoCommand *parent = 0); void undo(); void redo(); bool mergeWith(const QUndoCommand *command); int id() const; private: Document *m_doc; QString m_shapeName; QColor m_oldColor; QColor m_newColor; }; class SetShapeRectCommand : public QUndoCommand { public: SetShapeRectCommand(Document *doc, const QString &shapeName, const QRect &rect, QUndoCommand *parent = 0); void undo(); void redo(); bool mergeWith(const QUndoCommand *command); int id() const; private: Document *m_doc; QString m_shapeName; QRect m_oldRect; QRect m_newRect; }; #endif // COMMANDS_H
Copyright © 2007 Trolltech | Trademarks | Qt 4.3.2
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